From f99643ca6ea3aa05a0b16dc5d99e11fa00185684 Mon Sep 17 00:00:00 2001
From: Patrice Mandin <pmandin@caramail.com>
Date: Fri, 4 Jul 2008 18:53:44 +0200
Subject: [PATCH] nv30: Emit sampler state using state objects

---
 src/gallium/drivers/nv30/nv30_context.h    |  3 ++
 src/gallium/drivers/nv30/nv30_state.c      | 42 ++++++++++++++++++----
 src/gallium/drivers/nv30/nv30_state_emit.c |  9 ++++-
 3 files changed, 46 insertions(+), 8 deletions(-)

diff --git a/src/gallium/drivers/nv30/nv30_context.h b/src/gallium/drivers/nv30/nv30_context.h
index 0ad1dc6f912..5404685da25 100644
--- a/src/gallium/drivers/nv30/nv30_context.h
+++ b/src/gallium/drivers/nv30/nv30_context.h
@@ -96,6 +96,7 @@ struct nv30_state {
 	unsigned scissor_enabled;
 	unsigned stipple_enabled;
 	unsigned viewport_bypass;
+	unsigned fp_samplers;
 
 	uint64_t dirty;
 	struct nouveau_stateobj *hw[NV30_STATE_MAX];
@@ -129,6 +130,8 @@ struct nv30_context {
 	struct pipe_blend_color blend_colour;
 	struct pipe_viewport_state viewport;
 	struct pipe_framebuffer_state framebuffer;
+	unsigned nr_samplers;
+	unsigned nr_textures;
 
 	uint32_t rt_enable;
 	struct pipe_buffer *rt[2];
diff --git a/src/gallium/drivers/nv30/nv30_state.c b/src/gallium/drivers/nv30/nv30_state.c
index e65c4b215d4..97becd2be37 100644
--- a/src/gallium/drivers/nv30/nv30_state.c
+++ b/src/gallium/drivers/nv30/nv30_state.c
@@ -1,6 +1,7 @@
 #include "pipe/p_state.h"
 #include "pipe/p_defines.h"
 #include "pipe/p_util.h"
+#include "pipe/p_inlines.h"
 
 #include "nv30_context.h"
 #include "nv30_state.h"
@@ -116,7 +117,7 @@ nv30_sampler_state_create(struct pipe_context *pipe,
 	struct nv30_sampler_state *ps;
 	uint32_t filter = 0;
 
-	ps = malloc(sizeof(struct nv30_sampler_state));
+	ps = MALLOC(sizeof(struct nv30_sampler_state));
 
 	ps->fmt = 0;
 	if (!cso->normalized_coords)
@@ -197,6 +198,19 @@ nv30_sampler_state_create(struct pipe_context *pipe,
 
 	ps->filt = filter;
 
+	/*{
+		float limit;
+
+		limit = CLAMP(cso->lod_bias, -16.0, 15.0);
+		ps->filt |= (int)(cso->lod_bias * 256.0) & 0x1fff;
+
+		limit = CLAMP(cso->max_lod, 0.0, 15.0);
+		ps->en |= (int)(limit * 256.0) << 7;
+
+		limit = CLAMP(cso->min_lod, 0.0, 15.0);
+		ps->en |= (int)(limit * 256.0) << 19;
+	}*/
+
 /*	if (cso->compare_mode == PIPE_TEX_COMPARE_R_TO_TEXTURE) {
 		switch (cso->compare_func) {
 		case PIPE_FUNC_NEVER:
@@ -242,20 +256,24 @@ nv30_sampler_state_bind(struct pipe_context *pipe, unsigned nr, void **sampler)
 	struct nv30_context *nv30 = nv30_context(pipe);
 	unsigned unit;
 
-	if (!sampler) {
-		return;
-	}
-
 	for (unit = 0; unit < nr; unit++) {
 		nv30->tex_sampler[unit] = sampler[unit];
 		nv30->dirty_samplers |= (1 << unit);
 	}
+
+	for (unit = nr; unit < nv30->nr_samplers; unit++) {
+		nv30->tex_sampler[unit] = NULL;
+		nv30->dirty_samplers |= (1 << unit);
+	}
+
+	nv30->nr_samplers = nr;
+	nv30->dirty |= NV30_NEW_SAMPLER;
 }
 
 static void
 nv30_sampler_state_delete(struct pipe_context *pipe, void *hwcso)
 {
-	free(hwcso);
+	FREE(hwcso);
 }
 
 static void
@@ -266,9 +284,19 @@ nv30_set_sampler_texture(struct pipe_context *pipe, unsigned nr,
 	unsigned unit;
 
 	for (unit = 0; unit < nr; unit++) {
-		nv30->tex_miptree[unit] = (struct nv30_miptree *)miptree[unit];
+		pipe_texture_reference((struct pipe_texture **)
+				       &nv30->tex_miptree[unit], miptree[unit]);
 		nv30->dirty_samplers |= (1 << unit);
 	}
+
+	for (unit = nr; unit < nv30->nr_textures; unit++) {
+		pipe_texture_reference((struct pipe_texture **)
+				       &nv30->tex_miptree[unit], NULL);
+		nv30->dirty_samplers |= (1 << unit);
+	}
+
+	nv30->nr_textures = nr;
+	nv30->dirty |= NV30_NEW_SAMPLER;
 }
 
 static void *
diff --git a/src/gallium/drivers/nv30/nv30_state_emit.c b/src/gallium/drivers/nv30/nv30_state_emit.c
index eca1f0652cc..0ea78571972 100644
--- a/src/gallium/drivers/nv30/nv30_state_emit.c
+++ b/src/gallium/drivers/nv30/nv30_state_emit.c
@@ -47,7 +47,7 @@ nv30_emit_hw_state(struct nv30_context *nv30)
 {
 	struct nv30_state *state = &nv30->state;
 	struct nv30_screen *screen = nv30->screen;
-	unsigned i;
+	unsigned i, samplers;
 	uint64 states;
 
 	if (nv30->pctx_id != screen->cur_pctx) {
@@ -91,6 +91,13 @@ nv30_emit_hw_state(struct nv30_context *nv30)
 	nv30->dirty_samplers = 0;
 
 	so_emit_reloc_markers(nv30->nvws, state->hw[NV30_STATE_FB]);
+	for (i = 0, samplers = state->fp_samplers; i < 16 && samplers; i++) {
+		if (!(samplers & (1 << i)))
+			continue;
+		so_emit_reloc_markers(nv30->nvws,
+				      state->hw[NV30_STATE_FRAGTEX0+i]);
+		samplers &= ~(1ULL << i);
+	}
 
 	/* Texture images, emitted in nv30_fragtex_build */
 #if 0
-- 
2.30.2